Crystal Structures and Optical Properties of Transparent Ceramics Based on LaAlO3–Sr(Al,Ta)O3 Solid Solution

$48.00 plus tax (Refund Policy)

Download / Buy Article:

Abstract:

We fabricated a new series of transparent ceramics based on (1–x)LaAlO3xSr(Al0.5Ta0.5)O3 solid solution. These transparent ceramics were obtained by a conventional solid‐state reaction, and the crystal structure and its optical properties were investigated. The X‐ray diffraction (XRD) analyses of the ceramics revealed a cubic perovskite structure with a higher Sr(Al0.5Ta0.5)O3 content (Pm‐3m for x = 0.4–0.6 and Fm‐3m for x = 0.7–1.0), whereas the ceramics contained rhombohedral perovskite phase at x = 0.0–0.3. However, the Raman scattering study revealed that an Fm‐3m ordered structure was contained above x = 0.2. High transmittance was obtained at the cubic composition (x = 0.4–1.0), and was particularly high at x = 0.5–0.7. It was demonstrated that these transparent ceramics had both a high refractive index and a high Abbe number (low dispersion). The Abbe number of the x = 0.5 composition, 37.8, was higher than that of Ba(Mg,Ta)O3 system transparent ceramics (~30).

Document Type: Research Article

DOI: http://dx.doi.org/10.1111/j.1551-2916.2011.04750.x

Publication date: December 1, 2011

Related content

Tools

Favourites

Share Content

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more